Car-axle bearing.



ND. 642,820. Patenld Feb. 6, |900. J.. w. HARRISON.

CAR AXLE BEARING.

(Application sled sept. 28, 189s.)

3 Sheets-Sheet l.

(No Model.;

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No. 642,820. Patented Feb. 6, |900. J. W. HARRISON.

cAn AXLEBEARING.

Application led Sept. 28, 1898.1

(No Model.,` 3 Sheets- Shen 2.

No. 642,820 Patented Feb. 6, |900. J. W. HARRISON.

CAR AXLE BEARING.

(Application Med. Sept. 28, 1898.)

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rrnn STATES Prion.

PATENT JAMES WILLIAM HARRISON, OF ATLANTA, GEORGIA, ASSIGNOR, BY MESNE ASSIGNMENTS, TO TI-IE ATLANTIC BRASS COMPANY, OF NEV JERSEY.

CAR-AXL BEARING.

SPECIFICATION forming part of Letters Patent No. 642,820, dated February 6, 1900.

Application iilecl September 28,1898. Serial No. 692,052. (No model.)

To @ZZ whom t may concern:

Be it known that I, JAMES WILLIAM HAR- RISON, a citizen of the United States, and a resident of Atlanta, in the county of Fulton and State of Georgia, have invented a new and useful Improvement in Oar-Axle lBearings, of which the following is a specification.

My invention relates to an improvement in car-axle bearings with the object in view of increasing the life and efticiency of the bearing and reducing the cost of maintaining the bearing in practical working order.

A practical embodiment of my invention is represented in the accompanying drawings, in which Figure l is a vertical longitudinal section, showing the position of the bearing with respect to one end of a car-axle. Fig. 2 is a transverse section of the same on the line 2 2 of Fig. 1. Figs. 3, 4, and 5 represent, respectively, end and side elevation and bottom plan views of the wedge. Figs. 6, 7, and S represent, respectively, views in end and side elevation and top plan of Athe intermediate piece. Figs. 9, 10, and 11 represent, respectively, views in end and side elevation and top plan of the brass. Figs. 12 and 13 represent, respectively, in end and side elevation the position of the wedge when used in connection with a brass at present in common use. Fig. 14 is a top plan view of a wedge and the intermediate piece and brass used in connection therewith, and Fig. 15 is a vertical longitudinal section through the same along the plane of the line 15 15 of Fig. 14.

The car-axle is denoted by A, and the journal-box, which may be one of those in ordinary use, is denoted by B.

The brass which I prefer to use is denoted by C, the intermediate or bearing piece between the brass and the wedge by D, and the wedge by E. The brass C is preferably provided with a wearing-face c of some suitable antifriction metal and is provided on its back or top with a pair of upwardly-extended lugs c', adapted Ato enter sockets in the intermediate piece D. The brass C is further provided with upwardly or outwardly projecting lips c2, one to engage each of the four corners of the intermediate piece D for holding the latter securely in position against a possible twisting motion which might have a tendency to break or cut 0E one or both of the lugs c.

The seat for the intermediate piece D on -the back of the brass O is preferably arched or curved in cross-section, so that there is left at the four corners-of the seat within the compass of the lips 02a retaining-socket c3 at each of the four corners of the seat for the intermediate piece, and when the latter is placed in position, as shown in Figs. l and A2, the lips c2, being of malleable metal, may be bent inwardly to engage the beveled corners of the intermediate piece D to lock it securely in its position. The location of these retaininglips @2in position to engage the extreme ends of the intermediate piece D is such that their holding power is exerted to the best advantage on the intermediate piece D, and the latter is securely held against displacement. I preferably construct the lips c2 of a height corresponding to the crown of the brass, as clearly indicated in Figs. 9 and 10.

The intermediate or bearing piece D, which may be of chilled cast-iron or other hard and durable material, as may be found expedient, is provided on its under side with sockets d for the reception of the upwardly-extending lugs c on the back of the brass, and its corners, which enter the sockets or recesses c3 between the lips c2, are beveled, as shown at d', so that when the lips c2 are bent inwardly after the intermediate piece D has been placed in position they will prevent the unintentional displacement of the intermediate piece outwardly or away from the brass as well as laterally.

On its top the intermediate piece D is made convex, as shown at d2, its central portion being provided with an oval-shaped concave depression d3, from the center of which a stud d4 uprises to a height preferably about on a level with the margin of the concave depression d3.

The wedge denoted by E has on its under face a concave depression e., adapted to conform as nearly as may be to the convex face cl2 of the intermediate piece, and centrally of the concave e there is formed a circular convex projection e', adapted to conform in transverse shape to the transverse line of the de- IOO pression d3 in the top of the intermediate piece, and at the center of the convex projection e there is formed an elongated socket e2, adapted to receive the stud (Z4, uprising from the center of the depression d3 in the intermediate piece.

At the opposite sides the wedge E is provided with a pair of depending flanges es, the lower edges of which have beveled faces et. The distance between the flanges c3, depending from the under side of the wedge, is intended to be about equal to the transverse diameter of the intermediate piece D, so that the wedge E is held against a lateral movement bodily with respect tothe intermediate piece and brass by the engagement of the said flanges e3 with the points 0c (see Fig. 8,) located diametrically opposite one another on the intermediate piece, and at the same time the intermediate piece D and the brass, together with the axle, are permitted a limited rocking motion in a horizontal plane with respect to the wedge, or vice versa.

The wedge E is provided with the retaining-lugs c5 at its opposite sides and eG at its front, as is comm on in connection with wed ges now in use.

The extended flanges e3 with their beveled faces e4 are constructed with particular reference to making the wedge E adaptable to the brasses now in quite general use as well as to the particular form of brass and interlnediate piece hereinabove particularly described. I have shown one of these common brasses in connection with the wedge E in Figs. l2 and 13, the brass being denoted by F. The beveled faces e4 of the wedge are here brought into use and rest against the diagonal sides of the brass F, so that should the occasion presentitself wh ere the preferred brass C and intermediate piece D cannot be readily obtained the wedge E may be without any change used in connection with the ordinary brass F. This feature of the wedge renders it substantially universal in its use, and this is accomplished without in any man-V ner complicating its structure.

In assembling the parts, after the intermediate piece D has been placed in position on the back of the brass and the lips c2 bent inwardly or toward the beveled corners of the intermediate piece to lock it in position the wedge may be slid over the back of the intermediate piece until the elongated socket e2 in the convex projection on its under side receives the upwardly-extended lug d4 of the concave d3 in the intermediate piece, and in this position it will be securely held against displacement by the usual lugs on the interior of Ethe box B when the latter is lowered into position. Nhen so assembled, the necessary play in the longitudinal direction of the car-axle will be permitted by the slot e2 and the oval concave and convex on the un- -der side of the wedge and upper side or back of the intermediate piece, respectively, while as hereinabove stated a limited twisting or rocking motion in a horizontal plane will also be permitted because of the engagement of the flanges e3 with the opposite sides of the intermediate piece at the points 0c In the modified form of wedge shown in Fig. let and l5 I have provided a shape of wedge which will admit of its insertion in such of the axle-boxes as are in common use and not provided with retaining-lugs for wedges of the style shown in the previous iigures and hereinabove described.

The particular features of modification are making the opposite sides of the wedge straight and the flanges at the opposite sides of curved form deeper at the middle points where they engage the opposite sides of the intermediate piece and gradually growing shallower as they approach the opposite endsI of the wedge. This modified form of wedge is denoted as a whole by E,and its flanges by e7.

It is evident that changes might be resorted to in the form and arrangement of the several parts without departing from the spirit and scope of my invention. Hence I do not wish to limit myself strictly to the structure herein set forth; but

W' hat I claim isl. The combination with a wedge provided on its under side with a concave depression having a convex projection at the middle portion thereof, the said wedge being further provided with depending flanges on its opposite sides, of a brass7 provided on its back with a bearing-piece having a convex surface adapted to engage the concave depression on the under side of the wedge and with a con-4 cave depression centrally located on the convex surface and adapted to engage the con- Vex projection onthe under side of the wedge, substantially as set forth.

2. The combination with a wedge provided with a concave depression on its under side and with a convex projection at the middle portion of the said concave and with an elongated socket in the face of said convex projection, of a brass provided with a bearing-piece having a convex surface on its back adapted to receive the concave surface on the wedge, a concave depression adapted to receive the convex projection on the wedge and `a stud uprising from the concave depression and adapted to enter the said elongated socket,

.substantially as set forth.

3. The combination with a wedge provided with a concave depression on its under side and with a convex projection at the middle portion of said concave, of a brass provided on its back with a bearing-piece having a convex surface in position to receive the concave su rface on the wedge and with an oval concave depression in position to receive the convex projection on the wedge, substantially as set forth.

4. The combination with a brass and a wedge, of an intermediate bearing-piece fitted IOO IIO

'or outwardly from its back and an intermediate bearing-piece having beveled corners adapted to seat between the said lips and a wedge adapted to bear upon the intermediate piece, substantially as set forth.-

7. The combination with a brass having malleable metallic lips and studs extending upwardly from its back, of an intermediate zo bearing-piece adapted to seat between the lips and provided with sockets for receiving the studs and a wedge fitted to bear upon the intermediate piece, substantially as set forth.

8. The herein-described wedge provided at its opposite sides with depending flanges having beveled edges and with a concave depression on its under side and a convex projection at the middle portion of the concave depression,whereby the said wedge may be used practically in connection with either the 0rdinary brass or a special brass at pleasure, substantially as set forth. In testimony that I claim the foregoing as my invention I have signed my name, in presence of two witnesses, this 22d day of September, 1898.

' JAMES WILLIAM HARRISON. Vitnesses:

GEORGE KREIS, W. T. MILLER. 

